> For the complete documentation index, see [llms.txt](https://mariadb.com/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://mariadb.com/docs/gridgain/gridgain-9/reference/sql/sql-conformance.md).

# SQL Conformance

GridGain 9 conformance with the ANSI SQL:2016 standard — the features that are supported and those that are not.

GridGain 9 supports most of the major features of the ANSI SQL:2016 standard. This section details GridGain's conformance with the standard: which features are supported (and any limitations), and which are not supported.

* [Supported Features](/docs/gridgain/gridgain-9/reference/sql/sql-conformance/supported-features.md)
* [Unsupported Features](/docs/gridgain/gridgain-9/reference/sql/sql-conformance/unsupported-features.md)

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[Supported Features](/docs/gridgain/gridgain-9/reference/sql/sql-conformance/supported-features.md)
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ANSI SQL:2016 features that GridGain 9 supports out of the box, with the support level and any limitations for each feature and subfeature.
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[Unsupported Features](/docs/gridgain/gridgain-9/reference/sql/sql-conformance/unsupported-features.md)
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The ANSI SQL:2016 features that GridGain 9 does not support, listed by feature ID with alternatives where available.
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